Repository of Documents: Washington, DC

(Effective December 27, 2010) Regulations establishing water quality standards. Provisions are in effect
for Clean Water Act purposes, with the exception of Section 1104.8. Please
refer to the revised Section
1104.8 below.

(Effective February 4, 2014) This section contains updated numeric criteria and replaces the section posted in the 2010 standards. Please refer to the 2010 document, posted above, for the effective water quality standards in the remaining sections.